Chapter U5.113, Problem 3E

Interpretation Introduction

Interpretation:

If white light is shined through a thin blue plastic piece, the color that will appear needs to be determined.

Concept introduction:

Brain and human eye together are used to translate light into different color. In the eye, receptors of light convey the messages into the brain. As per Newton, color does not exist in the objects, preferably object’s surface reflects some colors and all other colours are absorbed. Human eye only percieve the colors which are reflected.

Answer to Problem 3E

Blue.

Explanation of Solution

White light is composed ofdifferent colors. When white light is passed through blue plastic, it will absorb all the colors except blue, as it absorbs rest of the colorsandreflects back the blue color of white light. So, everything appears blue when one sees the object from white light.